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2016 WF9
From Wikipedia, the free encyclopedia
2016 WF9 is a dark, sub-kilometer asteroid and suspected extinct comet, classified as near-Earth object and potentially hazardous asteroid of the Apollo group.[3]
Quick Facts Discovery, Discovered by ...
![]() Artist's rendition of 2016 WF9 | |
Discovery[1] | |
---|---|
Discovered by | NEOWISE |
Discovery site | Earth orbit |
Discovery date | 27 November 2016 (discovery: first observed) |
Designations | |
2016 WF9 | |
NEO · PHA · Apollo[2][3] | |
Orbital characteristics[2] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 4 | |
Observation arc | (192 days) |
Aphelion | 4.7614 AU |
Perihelion | 0.9816 AU |
2.8715 AU | |
Eccentricity | 0.6582 |
4.87 yr (1,777 days) | |
43.511° | |
0° 12m 9.36s / day | |
Inclination | 14.995° |
125.41° | |
342.45° | |
Earth MOID | 0.0156 AU (6.1 LD) |
Jupiter MOID | 0.5211 AU |
TJupiter | 2.893 (comet-like) |
Physical characteristics | |
Mean diameter | 0.5–1.0 km[4] |
<0.05 (dark) | |
20.2[2] | |
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